Duplicator



April 22 1924.

c. A. KENWORTHY ET AL DUPLICATOR Filed Feb. 11, 1922 2a l W 14- PatentedApr. 22, 1924;

o its s tar s s innate sric a.

CHARLES AUGUSTUSKENWORTHiY, OF EAST ORANGE, NEW JERSEY, AND RICHARDBALDA'UF, OF GLENDALE, NEW YORK.

nurnrcs'ronq Application filedFebruary 11, 1922. seriaino. 535,760.

1" aZZ whom it may concern:

Be it known that we, CHARLES Aucosrus' Knnwon-ri-rr, a citizen oftheUnited States, and a resident of East Orange, in the county of Essex andState of New Jersey, and

Brennan Banmor, a citizen of the United The invention relates toduplicators of;

that type in which a. negative or reversed impression of matter to becopied is im pressed upon an adhesive duplicating surface and positiveimpressions taken therefrom by bringing sheets of paper or the like intocontact therewith, and more particularly to that form of such apparatusin which the adhesive duplicating suface is borne upon spools orrollers, being wound from one to the other overa bed upon which theportion of the duplicating surface which 5 is in use rests. Theinvention has. for one and easily operated meansadaptedito joun nal sucha spool or roller in the frame of the machine, so that the same may bereadily inserted, rotated when desired,-and removed ,from the machine.

The invention consists in the novel construction, arrangement andcombination of various devices, elements and parts, as hereinafter setforth in the claims hereof, one embodiment of the same being illustratedin the accompanying. drawings and described in this specification.

In the accompanying drawings, Fig. 1 is an end view of an apparatusembodying our invention; I

Fig. 2 is a fragmentary vertical'section taken along the line 22 of Fig.1;

Fig. 3 is a fragmentary vertical section.

taken along the line 3-3 of Fig. 1;

Fig. 4. is a side view of the spool or roller;

Figs. 5 and 6 are fragmentary vertical and horizontal sections (theformer along the line 55 of Fig. 3 and the latter along the line 66 ofFig. 1) of a portion of the right hand part of Fig. 1; and

Fig. 7 is an end view of Fig. 4.

In carr ing our invention into effect in the embo. iment thereof whichwe have selected for description in this specification of its principalobjects to provide simple for the purpose of allowing one of the proandillustration in the accompanying draw- 1115 5, we provide a spool o-rroller for the duplicating strip of the formshown in Fig. 4c and also,in position in the duplicator, in Fig. 1. This rollercomprises a main,portion 11 and projecting bearing members 12 at each end, these being ofelongated shape as shown more particularly in, Fig. 7., so as to makethemchuck-engaging members.

The spool is journaled in the frame of the machine as follows: At oneside of the machine we provide an attachment, shown on the left in Fig.:1 and designated 13. The form ofxthis is best shown inFig. 2 Itconsists of a thin piece of metal, offan oval shape, secured to theframefofrthe duplicator at 1 4 and provided at its lower provide devicesfor journaling the other endof the spoolor roller. These devices areshown on an enlarged scale in side view in Fig. 3,. in vertical sectionin Fig. .5 and looking down fromabo-ve in 6. The devices comprise astationary member. 16 anda movable imember; 15, pivotally con-v V nectedto the frame 17- by a screw 18 .A circular socket or bearing is providedin 5 these members.. about halfineach, andis designated as 19 in Fig. 3,and a tapering opening between the two parts is provided, designated as20 in said figure, this being jections 12 on the spool or roller to beinserted in said opening 20 and down between the members 15 and 16lowering the pivoted member 15, until the end of the spool passes intothe circular opening 19 and is j ournaled therein as shown in Fig. 1.The member 15 is upheld by a spring 24 which tends to normally keep samein a closed position. V In the frame 17, on the lefthand side in Fig. 1,an opening is provided adjacent the end of the spool or roller, in whichopening is adapted to be placed a turnkey 22, the near endof which isprovided with a slot adapted to engage with the projections 12 of thespools, whereby the same may be rotated.

Itwill be understood that the spools or rollers above mentioned arethose upon which the duplicating strips are wound, and that the samepasses from one of the said no rollers up over the bed of the machinedesignated 23, and is wound upon a simllar roller at the other end ofthe machine. The winding from one roller to another is effected by therotation of the rollers by means of the turnkey 22. In the use andoperation of an apparatus constructed according to our invention, therollers are inserted in the machine by placing the end shown at the leftin Fig. 1 in the bearing formed in the member 13, and then slipping theprojection 12 on the other end of this roller into the opening 20between the members 15 and 16 and sliding SfilIlQClOWll until itbecomesjournaled in the circular bear ing 19. in order to withdraw theroller, the pivoted member 15 is lowered sufliciently to allow theprojection 12: to pass out of the bearing 19, whereupon the other end ofthe roller will be removed from its seat in the member 13. a

The advantages of our invention will be obvious from what has been abovesaid with regard to the construction and operation.

We do not limit ourselves to the exact form of construction which hasbeen described and illustrated, as it is obvious that various changescan be made therein without departing from the spirit and scope of theinvention.

Having thus described our invention, what we claim as new and desire tosecure by Letters Patent is as follows:

1. An attachment for duplicators having a spool adapted to have woundthereon a duplicating film and provided with an angular projection ateach end; comprising a member secured to the frame of the duplicator andprovided with a semicircular opening in the lower side of the same, and

memos a co-acting latch member pivotally secured to the frame of theduplicator and provided with a semicircular opening in the upper side ofthe same adapted to register with the opening in the first mentionedmember,said semicircular openings forming together a bearing adapted toreceive the projection on the end of said spool; said pivoted latchmember being adapted to be moved in one direction to receive-and torelease the end of said spool and to be moved in another direction tohold the same in place when in operation.

2. An attachment for duplicators having a spool adapted to have woundthereon a duplicating film, and provided with a projection at each endadapted to engage with a chuck; comprising a member secured to theframe'of the duplicator and provided with a semicircular opening in thelower side of the same, a co-acting latch member pivotally secured tothe frame of the duplicator and provided with a semicircular opening inthe upper side of the same adapted to register with the opening in thefirst mentioned member, and a spring tending to hold said latch memberin closed position, said semicircular openings forming together abearing adapted to receive the projection on the end of said spool; saidpivoted latch member being adapted to be moved in one direction toreceive and to release the end of said spool and to be moved in anotherdirection to hold the same in place when in operation.

In witness whereof we have hereunto signed our names this 17 day ofJanuary, 1922. Y

CHARLES AUGUSTUS KENWORTHY, RICHARD BALD/till".

